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» Approximation algorithms for the 0-extension problem
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STOC
2001
ACM
111views Algorithms» more  STOC 2001»
16 years 4 months ago
Optimal outlier removal in high-dimensional
We study the problem of finding an outlier-free subset of a set of points (or a probability distribution) in n-dimensional Euclidean space. As in [BFKV 99], a point x is defined t...
John Dunagan, Santosh Vempala
VLDB
2007
ACM
181views Database» more  VLDB 2007»
16 years 4 months ago
STAR: Self-Tuning Aggregation for Scalable Monitoring
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...
Navendu Jain, Michael Dahlin, Yin Zhang, Dmitry Ki...
EDBT
2004
ACM
155views Database» more  EDBT 2004»
16 years 4 months ago
Processing Unions of Conjunctive Queries with Negation under Limited Access Patterns
We study the problem of answering queries over sources with limited access patterns. The problem is to decide whether a given query Q is feasible, i.e., equivalent to an executable...
Alan Nash, Bertram Ludäscher
ICDM
2009
IEEE
132views Data Mining» more  ICDM 2009»
15 years 11 months ago
Bayesian Overlapping Subspace Clustering
Given a data matrix, the problem of finding dense/uniform sub-blocks in the matrix is becoming important in several applications. The problem is inherently combinatorial since th...
Qiang Fu, Arindam Banerjee
AAIM
2009
Springer
98views Algorithms» more  AAIM 2009»
15 years 11 months ago
Latency Constrained Aggregation in Chain Networks Admits a PTAS
This paper studies the aggregation of messages in networks that consist of a chain of nodes, and each message is time-constrained such that it needs to be aggregated during a give...
Tim Nonner, Alexander Souza